Based on the assessment system of flight websites AirlineRatings.com

The system of assessment of AirlineRatings.com implemented with certain calculations to the audit of the aviation authorities, associations, government auditing, and records of each airline safety record.

Furthermore, the site also examine airlines operating history, a record of events, and operational excellence. Of the 449 airlines that are monitored, only 149 who received seven star in terms of security.

This assessment while not include airline of AirAsia, as the rating for the airline to temporarily delayed or "pending".